Installing VMware ESXi 5.5.0 Update 3 on KVM

The line that says “Running inside a VM; adjusting spinout timeout to 180 seconds” would suggest that KVM implements enough of our backdoor interface to make it look like we’re running under a VMware hypervisor. When we’re running in this environment, we use the backdoor to get the host TSC frequency. I suspect that KVM doesn’t implement the “GETMHZ” backdoor call, so we are confused about the TSC frequency. The 30ms delay turns into … 30 hours? 30 years?

So they had a source code change for QEMU 1.7.0, however it obviously doesn’t work in 2.x. It was rolled up stream, and then made into a switch to disable with a simple flag to add into the command line.